PGP: Pretty Good Privacy by Simson Garfinkel

By Simson Garfinkel

Use of the web is increasing past anyone's expectancies. As organisations, govt workplaces, and usual voters start to depend upon the knowledge road to behavior company, they're figuring out how vital it truly is to guard their communications -- either to maintain them a mystery from prying eyes and to make sure that they aren't altered in the course of transmission. Encryption, which till lately used to be an esoteric box of curiosity purely to spies, the army, and some lecturers, presents a mechanism for doing this.PGP, which stands for lovely solid privateness, is a loose and largely to be had encryption software that permits you to defend records and piece of email. Written by means of Phil Zimmermann and published in 1991, PGP works on nearly each platform and has turn into extremely popular either within the U.S. and overseas. since it makes use of cutting-edge public key cryptography, PGP can be utilized to authenticate messages, in addition to preserve them mystery. With PGP, you could digitally "sign" a message for those who ship it. by way of checking the electronic signature on the different finish, the recipient may be definite that the message was once now not replaced in the course of transmission and that the message really got here from you.PGP bargains a well-liked replacement to U.S. executive tasks just like the Clipper Chip simply because, not like Clipper, it doesn't enable the executive or the other outdoor business enterprise entry for your mystery keys.PGP: lovely sturdy Privacy via Simson Garfinkel is either a readable technical user's consultant and a desirable behind-the-scenes examine cryptography and privateness. half I, "PGP Overview," introduces PGP and the cryptography that underlies it. half II, "Cryptography historical past and Policy," describes the heritage of PGP -- its personalities, criminal battles, and different intrigues; it additionally presents history at the battles over public key cryptography patents and the U.S. executive export regulations, and different facets of the continuing public debates approximately privateness and unfastened speech. half III, "Using PGP," describes the way to use PGP: holding documents and e-mail, developing and utilizing keys, signing messages, certifying and allotting keys, and utilizing key servers. half IV, "Appendices," describes how you can receive PGP from websites, how one can set up it on computers, UNIX structures, and the Macintosh, and different history info. The e-book additionally features a thesaurus, a bibliography, and a convenient reference card that summarizes the entire PGP instructions, surroundings variables, and configuration variables.

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Special thanks to Brock N. C. who has covered the privacy beat for many years and who wrote large parts of Chapter 5, Privacy and Public Policy. And thanks to Jerry Cleveland of the Denver Post for sending us, under deadline pressure, a photograph of Phil Zimmermann. Gary B. pgp. It is a wonderful reference; reading it has been an inspiration for this project. An anonymous cyberspace person who goes by the name Xenon has also produced some valuable texts that I found very useful. Check out the Bibliography for information on how to get your own copies of these works.

And finally, bound into the back of the book, you will find a handy reference card that summarizes the PGP commands, environment variables, and configuration variables. Using PGP on PC, UNIX, Macintosh, and Other Platforms Although PGP was originally developed for the DOS operating system, today the program runs on dozens of different kinds of computers and operating systems. This is because PGP was originally distributed as free software, complete with source code: it doesn't take a lot of work to grab the source code for PGP (which is widely available and written in C) and recompile it for a new platform.

And finally, special thanks to my wife, Beth Rosenberg, for coming up with the name Pretty Good Pizza and for her constant love and support. Page 1 I PGP OVERVIEW This part of the book discusses the need for encryption and introduces PGP. It contains the following chapters: Chapter 1, Introduction to PGP, introduces PGP, gives you the basic vocabulary you need before you use the program, and shows you how to perform simple functions in PGP. S. export and patent policies relevant to cryptography.

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